v3.19.3.a.u2

Convertible debentures - Series E Conversion Option (Details) $ in Millions, $ in Millions	Jan. 29, 2018 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jan. 29, 2018 CAD ($)
Convertible debentures
Derivative Liabilities measured at fair value		$ 27.9	$ 19.9
Series E Debentures
Convertible debentures
Derivative Liabilities measured at fair value		3.2	$ 1.2	$ 4.7
Gain (loss) on derivatives	$ 0.0
Derivative fair value of derivative liability discount		$ 4.7

X

- Definition

Represents the amount of derivative fair value of derivative liability discount.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 20
-Section 50
-Paragraph 4D
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
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